Influence of water immersion on the mechanical properties of fiber posts

Wataru Komada; Tasuku Inagaki; Yoji Ueda; Satoshi Omori; Keiichi Hosaka; Junji Tagami; Hiroyuki Miura

doi:10.1016/j.jpor.2016.05.005

Influence of water immersion on the mechanical properties of fiber posts

J Prosthodont Res. 2017 Jan;61(1):73-80. doi: 10.1016/j.jpor.2016.05.005. Epub 2016 Jun 17.

Authors

Wataru Komada¹, Tasuku Inagaki², Yoji Ueda³, Satoshi Omori⁴, Keiichi Hosaka⁵, Junji Tagami⁶, Hiroyuki Miura⁷

Affiliations

¹ Fixed Prosthodontics, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan. Electronic address: w.komada.fpro@tmd.ac.jp.
² Fixed Prosthodontics, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan. Electronic address: t.inagaki.fpro@tmd.ac.jp.
³ Fixed Prosthodontics, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan. Electronic address: y.ueda.fpro@tmd.ac.jp.
⁴ Fixed Prosthodontics, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan. Electronic address: s.omori.fpro@tmd.ac.jp.
⁵ Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan. Electronic address: hosaka.ope@tmd.ac.jp.
⁶ Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan. Electronic address: tagami.ope@tmd.ac.jp.
⁷ Fixed Prosthodontics, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan. Electronic address: h.miura.fpro@tmd.ac.jp.

PMID: 27324293
DOI: 10.1016/j.jpor.2016.05.005

Abstract

Purpose: The purpose of this study was to evaluate the influence of water immersion on the mechanical properties of three kinds of glass fiber posts and the fracture resistance of structures using resin composites with glass fiber posts.

Methods: Each post was divided into three groups; a control group and two water immersion groups (30 and 90 days). Flexural strength was determined by three-point bending test. Each structure was divided into two groups; a control group and a water immersion group for 30 days. The fracture strength of structures was determined by a static loading test.

Results: In the flexural strength, two kinds of post in water immersion groups showed lower values than control groups. In the fracture strength, two kinds of structures in water immersion group showed lower values than control groups.

Conclusion: The prefabricated glass fiber posts and structures using resin composites with glass fiber posts were affected by water immersion.

Keywords: Composite resin core; Fracture strength; Glass fiber posts; Water immersion.

MeSH terms

Composite Resins*
Dental Materials
Glass*
Immersion*
Materials Testing*
Stress, Mechanical*
Tensile Strength*
Time Factors
Water*

Substances

Composite Resins
Dental Materials
fiberglass
Water